JP2005147641A - Energy saving system for multiple dwelling house - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve energy saving performance without changing a living pattern, or impairing comfortableness. <P>SOLUTION: The system is composed such that apparatuses, piping, bathroom facilities, and the number of entrants per hour and day of the week can be grasped, and it is composed such that a supply water temperature is raised by carrying out heat exchange with supply water by heat generated by a boiler, or waste heat generated from a cogeneration system or the like, and the water is supplied to a building exclusive part by a water supply piping. In the system, a common bathroom is provided to reduce the number of times of bathing in each dwelling unit, and energy saving performance used as a whole building is enhanced. If there is still remaining heat, a water supply piping of a neighboring area is connected to a heat exchanger to enhance energy saving performance of the area. When the apparatus is a boiler, the number of entrants per time zone and day of the week is grasped by a device grasping the number of bathers, a time to operate the boiler is determined on the basis of the result, and the boiler is operated in accordance with the time. When the apparatus is a facility generating both electricity and heat such as a cogeneration system, operation is carried out in accordance with electric power that is needed by the whole building. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

The present invention relates to an apartment house that uses a device that generates electricity and heat in a building such as an apartment house to improve energy saving.

Conventionally, in order to save energy in buildings such as apartment buildings, heat insulation is improved for the entire building, or electricity such as cogeneration is introduced to generate electricity, and hot water is generated using the generated heat. Hot water was supplied to the building's exclusive area using hot water piping.

In recent years, environmental awareness has increased, and building materials with high thermal insulation are used to increase energy conservation in buildings, and efforts have been made to save energy in each unit. In order to implement this method, it is necessary to carry out with a considerable awareness of energy saving in each dwelling unit. Nevertheless, considering the whole building, the actual situation is that the energy saving performance does not increase for the effort. Therefore, the present invention improves the energy saving performance of the entire building even if the consciousness of energy saving is reduced in each dwelling unit. At the same time, the energy saving performance of each dwelling unit is improved. The goal is to achieve energy saving without changing lifestyle patterns or sacrificing comfort.

The system according to the present explanation is composed of equipment, piping, bath facilities, and devices that can grasp the number of people entering by time and day of the week. Equipment includes facilities such as boilers that generate only heat, cogeneration systems that generate electricity and heat simultaneously, and heat exchangers. The pipe is a water supply pipe. The device for determining the number of bathers refers to an entrance / exit management device using an IC card or the like.

When the configuration 1 includes a boiler, a heat exchanger, a water supply pipe, and a bathhouse, the normal water supply pipe enters the site from the road and is distributed to each dwelling unit on the site and in the building. In this system, the water supply pipes are distributed to the boiler, bathhouse and building water distribution at the place where it enters the building.

Hot water made by the boiler is poured into the bath tub of the communal bath. A heat exchanger is installed in the middle of the hot water pipe, and the water supply pipe distributed earlier is connected to exchange heat. The water supply is distributed to each dwelling unit as drinking water after heat exchange. This raises the water supply temperature of the entire building.

The boiler operation method is a device for determining the number of bathers, grasps the number of occupants for each time zone and day of the week, determines the time for operating the boiler based on the result, and operates the boiler according to the time. The device that knows the number of people entering the room is a combination of a video camera and recording device, face recognition device, remote monitoring device, etc., so that it can grasp the entrance of people other than registrants, collect bathroom usage fees, and prevent crime. It is a feature.

When the configuration 2 includes equipment such as a cogeneration system that simultaneously generates electricity and heat, a heat exchanger, a water supply pipe, and a bathhouse, the cogeneration system and the like are arranged at the boiler position as in the configuration 1.

The operation method is based on the power required by the entire building. For example, in the case of collective housing, there is a time slot that is hardly used in each unit, but a certain amount of power is always used in all units. Electric power is generated according to the electric power, and hot water is boiled with the waste heat. Hot water is poured into the bath tub of the communal bath. A heat exchanger is installed in the middle of the hot water pipe, and the water supply pipe distributed earlier is connected to exchange heat. After the heat exchange, the water supply is distributed to each dwelling unit as water supply. This raises the water supply temperature of the entire building.

If the heat still remains, install a heat exchanger in the middle of the hot water pipe, connect a water supply pipe to supply to the nearby area, and raise the water supply temperature in the entire vicinity.

The device for determining the number of people entering the room is the same as in the first configuration.

The more people in each unit use a shared bathroom, the more energy is saved in the entire building.

Even if each person is not conscious of energy saving and changes their lifestyle, energy saving can be realized by simply using a shared bathroom.

Since the water supply temperature of the entire building rises, less heat is required when boiling water in each dwelling unit. Especially in winter, all waste heat is used, so there is no waste of heat energy. Because the piping for that uses water supply piping, it is the same as a general apartment house, so there is no additional equipment cost.

By bathing in a shared bathroom, the frequency of bathing in each dwelling unit is reduced. As a result, the energy used by each house is reduced.

By bathing in a shared bathroom, the frequency of bathing in each dwelling unit is reduced. The number of times of bath cleaning decreases accordingly.

In recent years, there is a tendency to increase the bathroom size of each dwelling unit. However, since a large bathroom can be used as a shared bathroom, there is no need to make the bathroom so large. You can take a lot of living and storage accordingly.

It is possible to prevent a person other than the registrant from entering the room by using a device that grasps the number of people entering the room.

In the case of Configuration 1, the number of people entering the room is ascertained by time of day and day of the week using a device that grasps the number of visitors in advance, and the time for operating the boiler is determined based on the results. Finish

In the case of the configuration 2, since an operation plan can be made while considering the electricity and heat system of electricity and gas, the cost system can be saved at the same time as saving energy.

Usually, when heat is generated jointly and used with hot water, a hot water pipe is provided separately from the water supply pipe and water is distributed to each dwelling unit. Therefore, the amount of waste is doubled compared to the case where only the water supply pipe is used at the time of equipment update, and the disposal cost and the renewal amount are increased. Since this system distributes water whose temperature has risen to a certain extent through the water supply pipe, only the water supply pipe is required. Therefore, when the equipment is renewed, the same amount of waste, disposal cost and renewal amount as a general apartment house can be used.

If the water supply temperature in the nearby area can be raised, not only apartment housing but also energy saving in the nearby area is possible.

The system configuration of the present invention will be described with reference to the drawings. As an example of implementation, FIG. 1 shows a case where the system is configured by equipment such as a cogeneration system that generates electricity and heat at the same time, a heat exchanger, a water supply pipe, and a bathhouse.

Normally, water supply pipes enter the site from the road and are distributed to each dwelling unit on the site and in the building. In this system, the water supply is first distributed to the building water distribution 1a and the bathhouse 1b at the place where the water enters the building.

Hot water produced by the cogeneration system 101 is heat-exchanged by the heat exchanger 2b and poured into the bathtub 4 at the bathhouse. The other building drainage water is heat-exchanged by the heat exchanger 2a and distributed to each dwelling unit as water supply. This raises the water supply temperature of the entire building. In order to change the temperature at which water is distributed to the dwelling units, the heat exchange amount is changed by using the valves 3a and 3b. For example, when heat exchange is not performed, it can be realized by closing the valve 3a and opening only the valve 3b. The heat exchange can be realized by closing the valve 3b and opening the valve 3a. Further, the feed water temperature can be changed depending on the degree of opening and closing of the valves 3a and 3b.

When raising the water supply temperature in the nearby area, the dedicated water supply pipe is branched for the exclusive area and the nearby area.

It can be applied to apartment buildings that use energy.

  It is drawing which showed the system configuration | structure using a cogeneration system.

Explanation of symbols

1a Water supply for exclusive use 1b Water supply for bathtub 2a Heat exchanger for water supply 2b Heat exchanger for bathtub 3a Heat exchanger for water supply Circulation valve 3b Heat exchanger bypass valve for water supply 4 Bath 101 101 Cogeneration system

Claims (1)

Equipment, piping, bathhouse facilities, a system that is configured as a device that can grasp the number of people entering by time and day of the week, and equipment such as a boiler that generates only heat and a cogeneration system that generates electricity and heat simultaneously, There is a heat exchanger. The pipe is a water supply pipe. The device for determining the number of bathers refers to an entrance / exit management device using an IC card or the like.
If the equipment is a boiler, a heat exchanger will be installed in the middle of the pipe that supplies hot water to the bathtub at the communal bath, and heat will be exchanged with the water supply to distribute water to each dwelling unit. By this means, the device for raising the water supply temperature of the entire building and the operation time are grasped by the time zone and the day of the week by the device that grasps the number of bathers, and the time for operating the boiler is determined based on the result, and the time When the means and equipment for operating the combined boiler are a cogeneration system or the like, the operation method is generated in accordance with the power required by the entire building. In addition, a heat exchanger will be installed in the pipe that supplies hot water to the bathtub at the communal bath, and heat is exchanged with the water supply to distribute water to each dwelling unit. In this way, if heat still remains in the design due to the means for raising the water supply temperature of the entire building, install a heat exchanger in the middle of the pipe that supplies hot water to the bathtub, connect the water supply pipe that supplies the nearby area, and An energy-saving system for apartment buildings with means to raise the water supply temperature.

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